These Duracell Coppertop Batteries can be used to power portable and household electronic devices. 9V batteries are great in use for toys, electronics, torches and portable power tools. These are 9V batteries and are suitable for use in toches and power tools. Duracell Coppertops have been engineered to power most household and portable devices. The Duralock Power Preserve Technology ensures that batteries are guaranteed for 5 years in storage. This pack comes with 1 battery.